#!/bin/bash
# Copyright 2010 The Chromium Authors
# Use of this source code is governed by a BSD-style license that can be
# found in the LICENSE file.

script=$(readlink $0)
source $(dirname ${script:-$0})/git-utils.sh

old_ref=$1  # Previous HEAD.
new_ref=$2  # Current HEAD.
branch_switch=$3  # Whether we switched branches.

if [ $old_ref == $new_ref ]; then
    if ! git diff-index --quiet HEAD $(git rev-parse --show-cdup)DEPS; then
        warn "DEPS has local modifications; do you need to re-run gclient sync?"
    fi
else
    if git diff-tree $old_ref $new_ref | grep -qs $'\tDEPS$'; then
        warn "DEPS has changed; you probably need to re-run gclient sync."
    fi
fi

